MW: 349.4 g/mol
IUPAC Name: (2S,5R,6R)-6-[[(2R)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
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- IR and Raman spectra and its vibrational mode are calculated by Firefly QC package , which is partially based on the GAMESS (US)  source code.
- The B3LYP functional with 6-311+G(d,p) basis set is used.
Horizontal axis of the spectra are corrected by wavenumber-linear scaling (WLS) .
The scaling falctor of WLS is sWLS = α - 10-5 β ν.
Parameters of the compound are refferd to PubChem .
 Alex A. Granovsky, Firefly version 8, www http://classic.chem.msu.su/gran/firefly/index.html
 M.W.Schmidt, K.K.Baldridge, J.A.Boatz, S.T.Elbert, M.S.Gordon, J.H.Jensen, S.Koseki, N.Matsunaga, K.A.Nguyen, S.Su, T.L.Windus, M.Dupuis, J.A.Montgomery J.Comput.Chem. 14, 1347-1363 (1993)
 H.Yoshida, K.Takeda, J.Okayama, A.Ehara and H.Matsuura, J. Phys. Chem. A 106, 3580 (2002)
 National Center for Biotechnology Information. PubChem Compound Summary for CID 6249, Ampicillin. https://pubchem.ncbi.nlm.nih.gov/compound/Ampicillin. Accessed Apr. 18, 2022.